Question

Степень окисления : Hg(NO3)2 и Zn(NO3)2

Answer 1

Hg(NO3)2: Hg+2, N+4, O-2
Zn(NO3)2: Zn+2, N+4, O-2

Answer 2

а Fe(OH)3?

Answer 3

Fe+3, H+, O-2